Colias interior
In 3 days ~30% in a week ~60%
Colias interior, the pink-edged sulphur, is a species of North American butterfly in the family Pieridae. It is the State Butterfly of Maine. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Elk Island National Park | 🇨🇦 Canada | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Glacier National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Pink-Edged Sulphur sighting in Elk Island National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 76th most-seen of the 112 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Pink-Edged Sulphur in Elk Island National Park on a given day, against under 5% in August to June, the lowest months. That is one of Elk Island National Park's wettest months, with about 110 mm of rain against 20 mm in December.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Pink-Edged Sulphur sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 parks where we can rate Pink-Edged Sulphur sightings, Elk Island National Park has the highest daily chance: about 10%. Next come Acadia National Park (United States, about 10%) and Glacier National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Pink-Edged Sulphur is recorded against all the insects logged in Elk Island National Park (9 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
